<!doctype html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
    <title></title>
    <style>body{font-size:12px;}</style>
</head>
<body>
{% block content %}{% endblock %}
<p><a href="/">首页</a></p>
</body>
</html>

